HCPCS Level II Q4333: Ardeograft Per Square Centimeter, Add-On - OpenPayer

Summary & Overview

HCPCS Level II Q4333: Ardeograft Per Square Centimeter, Add-On

HCPCS Level II code Q4333 represents billing for Ardeograft measured per square centimeter as an add-on product reported in addition to a primary procedure. As an HCPCS Level II add-on code, Q4333 is used to capture the incremental supply cost of a graft material placed during a surgical encounter and can affect procedure-level payment accounting and inventory valuation nationally.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code's clinical context, typical site of service, and how payers commonly treat add-on biologic product codes. The publication summarizes common modifiers associated with add-on supply reporting, notes the service line implications for hospital and ambulatory surgical center billing, and highlights areas where policy or coverage variation commonly occurs.

This summary is intended for billing managers, revenue cycle leaders, and clinicians who need clear, national-level context for using HCPCS Level II code Q4333. The report does not provide clinical recommendations but focuses on coding purpose, payer scope, and operational considerations related to graft product reporting.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareQ4333HCPCS Level IIardeograftgraft productadd-on codesurgical billingoperating roombiologic implantsupply reporting

Billing Code Overview

HCPCS Level II code Q4333 describes Ardeograft billed per square centimeter as an add-on, list separately in addition to primary procedure. This code covers billing for a graft material product measured and reported by surface area, intended to be used in conjunction with a primary surgical procedure.

Service type: Graft/biologic implant product

Typical site of service: Operating room or surgical suite

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A patient with a full-thickness skin defect or chronic non-healing wound undergoes surgical debridement and preparation of the wound bed. The surgeon elects to use an extracellular matrix product, Ardeograft, applied as an adjunctive biologic graft measured and billed per square centimeter using Q4333. Typical patients include those with complex diabetic foot ulcers, venous stasis ulcers, or surgical wounds with inadequate soft-tissue coverage where an onlay biologic scaffold is used to support tissue regeneration. The clinical workflow includes wound assessment, wound bed preparation (sharp debridement and hemostasis), measurement of graft size in square centimeters, application of the Ardeograft material to the defect, fixation as needed (sutures, staples, adhesives), dressing application, and outpatient follow-up visits for graft incorporation and wound healing assessment. The product Q4333 is billed in addition to the primary procedure code for the operative or wound care service and may require documentation of graft size, indication, and that the product is an add-on biologic material.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (default)	When no special circumstances apply and the service is billed routinely.

HCPCS Q4348: Sentry SL Matrix, Per Square Centimeter (Add-On)

HCPCS-Q0169-PROMETHAZINE-ORAL-ANTI-EMETIC-SUBSTITUTE-FOR-CHEMOTHERAPY

HCPCS Q0169: Promethazine 12.5 mg Oral Anti‑Emetic as IV Substitute

HCPCS-Q4440-CURAMATRIX-WOUND-MATRIX-PER-SQ-CM

HCPCS Q4440: Curamatrix Per Square Centimeter, Add-On

HCPCS-Q4225-AMNIOBIND-DERMABIND-PER-SQ-CM

HCPCS Q4225: Amniobind or Dermabind, per square centimeter

HCPCS-Q4239-AMNIOMAXX-AMNIOTIC-MEMBRANE-ALLOGRAFT-PER-CM

HCPCS Q4239: Amnio-maxx Amniotic Membrane Allograft, per cm

HCPCS-Q4048-PEDIATRIC-SHORT-LEG-FIBERGLASS-SPLINT

HCPCS Q4048: Pediatric Short Leg Fiberglass Splint

HCPCS-Q0517-PHARMACY-FEE-HIV-PRE-EXPOSURE-PROPHYLAXIS-60-DAY

HCPCS Q0517: Pharmacy Supplying Fee for HIV Pre-Exposure Prophylaxis

HCPCS-Q5009-HOSPICE-HOME-HEALTH-UNSPECIFIED-SITE

HCPCS Q5009: Hospice or Home Health Care, Place Not Otherwise Specified

HCPCS-Q4311-ACCESS-PER-SQUARE-CENTIMETER-ADD-ON

HCPCS Q4311: Access Per Square Centimeter, Add-On

HCPCS-Q1005-NEW-TECHNOLOGY-INTRAOCULAR-LENS-CATEGORY-5

HCPCS Q1005: New Technology Intraocular Lens, Category 5

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Taxonomy Code	Specialty	Notes
`163WX0200X`	Plastic Surgery	Commonly performs soft tissue reconstruction and biologic graft placement.
`208000000X`	General Surgery	Frequently manages complex wounds and performs grafting in operative wound care.
`207L00000X`	Podiatry	Often places biologic grafts for diabetic foot and lower-extremity wounds.
`2086S0102X`	Vascular Surgery	Manages ischemic limb wounds and may use biologic grafts as adjunctive therapy.
`103T00000X`	Dermatology	Performs wound-related grafting and application of biologic matrices in select cases.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`E11.621`	Type 2 diabetes mellitus with foot ulcer	Diabetic foot ulcers frequently require debridement and biologic grafts like `Q4333` to support healing.
`L97.322`	Non-pressure chronic ulcer of right calf with necrosis of muscle	Chronic lower-extremity ulcers with tissue loss are indications for extracellular matrix grafts to aid regeneration.
`I83.013`	Varicose veins of right lower extremity with ulcer, inflammatory	Venous stasis ulcers may be treated with grafting after adequate venous care and debridement.
`S81.002A`	Unspecified open wound, right thigh, initial encounter	Traumatic full-thickness wounds may receive biologic grafts for soft-tissue coverage.
`T81.89XA`	Other complications of procedures, not elsewhere classified, initial encounter	Complications such as wound dehiscence or graft failure that relate to use and follow-up of biologic grafts.
`M86.673`	Chronic osteomyelitis, left lower leg	Complex wounds with underlying osteomyelitis may require staged debridement and use of biologic matrices during reconstruction.
`L89.153`	Pressure ulcer of left heel, stage 3	Pressure injuries with full-thickness tissue loss are indications for biologic scaffold products to support healing.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`11042`	Debridement, subcutaneous tissue, first 20 sq cm or less	Often performed prior to application of `Q4333` to prepare the wound bed for graft placement.
`15271`	Application of a skin substitute graft to trunk, arms, legs; first 100 sq cm or less	Commonly billed when a skin substitute procedure accompanies or is the primary procedure and `Q4333` is billed as an add-on for an adjunctive biologic product charged per sq cm.
`29580`	Application of a multilayer compression system (for venous ulcer)	May be part of postoperative care and off-loading following graft placement for venous stasis ulcers.
`27600`	Repair, open or closed, of Achilles tendon rupture or other foot/ankle soft tissue procedures	Representative of surgical procedures on the lower extremity after which a biologic graft like `Q4333` might be used for soft-tissue augmentation.
`97607`	Negative pressure wound therapy (NPWT) using vacuum-assisted drainage, applied to open wounds	Often used before or after graft placement to promote wound bed preparation and graft adherence.

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